Research of the performance conditions of the fuel heater of the internal combustion diesel engine

Roman Kovalenko

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0003-2083-7601

Andriy Kalynovskyi

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0002-1021-5799

Boris Kryvoshei

National University of Civil Defenсe of Ukraine

https://orcid.org/0000-0002-2561-5568

Sergey Nazarenko

National University of Civil Defenсe of Ukraine

https//orcid.org/0000-0003-0891-0335

DOI: https://doi.org/10.52363/2524-0226-2022-36-7

Keywords: operating conditions of the fuel heater, special vehicle, diesel fuel, limit temperature of fuel filtration

Аnnotation

An improved design of the fuel heater of a diesel internal combustion engine is proposed, which ensures its operability under conditions when the cruising engine of a special vehicle is not started. The mentioned technical result is achieved by parallel connection to the known design of the fuel heater of the internal combustion diesel engine of the exhaust gas discharge pipeline, which is connected to the autonomous air heater of the vehicle cabin. Accordingly, the object of research is the design of special vehicles, and the subject of research is methods of improving the starting properties of diesel internal combustion engines in conditions of low ambient temperatures. Checking the performance of the proposed design of the fuel heater of the internal combustion diesel engine was performed by using well-known methods of calculating plate heat exchangers. For the calculations, the characteristics of the autonomous air heater of the vehicle cabin model «Planar-8DM-24» were used. It was established that the temperature of diesel fuel, which is maintained in the fuel tank near the fuel intake during the operation of the autonomous air heater of the vehicle cabin, under the condition that the start of the cruising engine is not carried out, is about 0 °C. This value is above the limit temperature of filtration of summer diesel fuel, that is, it allows us to assert the efficiency of the proposed design of the fuel heater. The proposed design of the diesel internal combustion engine fuel heater is most suitable for special vehicles operated by practical units and allows improving the starting properties of marching engines in conditions of low ambient temperatures.

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